Exercising with my husband.

I<3Dolphins • I`m a 23 year old Military wife. My husband and I have been TTC #1 since November 13, 2013. ✨
Is it better to exercise in the evening (2-3 hours before bed), in the morning or both? Or does it not matter?  
​I really want to exercise with my husband but he's gone almost all day. 
​He goes to PT at 0600, comes home for breakfast at 0730, leaves again at 0850, comes home for lunch at 1130, then leaves again at 1245, then he Comes home for good at 1700 or 1800.  
​Should I just work out without him after breakfast or should I wait until he comes home for good to work out with him?